| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. Y Lin vs A Kozak |
 | 0-1 | 36 | 2019 | Prague Open | A62 Benoni, Fianchetto Variation |
| 27. A Kozak vs G Liu |
| ½-½ | 22 | 2019 | Prague Open | A04 Reti Opening |
| 28. N Kacharava vs A Kozak |
| 1-0 | 60 | 2019 | Prague Open | B45 Sicilian, Taimanov |
| 29. Turov vs A Kozak |
| 1-0 | 32 | 2019 | Graz Open-A | A34 English, Symmetrical |
| 30. A Kozak vs Z Xiang |
| ½-½ | 32 | 2019 | Graz Open-A | D35 Queen's Gambit Declined |
| 31. Q Loiseau vs A Kozak |
| 1-0 | 59 | 2019 | Graz Open-A | B45 Sicilian, Taimanov |
| 32. A Kozak vs S Sathiaram |
| 1-0 | 45 | 2019 | Graz Open-A | E60 King's Indian Defense |
| 33. A Kozak vs Swayams Mishra |
| 0-1 | 34 | 2019 | Polonia Wroclaw Master GM | D38 Queen's Gambit Declined, Ragozin Variation |
| 34. R Praggnanandhaa vs A Kozak |
| 1-0 | 40 | 2019 | World Youth Open U18 | A07 King's Indian Attack |
| 35. A Kozak vs F Blohberger |
| ½-½ | 40 | 2019 | World Youth Open U18 | E51 Nimzo-Indian, 4.e3 |
| 36. A Kozak vs B Socko |
| ½-½ | 50 | 2020 | Graz Open A | B13 Caro-Kann, Exchange |
| 37. A Kozak vs P Teclaf |
| ½-½ | 24 | 2020 | Ustron Open A | A17 English |
| 38. R Barski vs A Kozak |
| 1-0 | 35 | 2020 | Ustron Open A | D43 Queen's Gambit Declined Semi-Slav |
| 39. A Kozak vs M Fiedorek |
| 0-1 | 37 | 2020 | 31st Cracovia Open A 2020/21 | D35 Queen's Gambit Declined |
| 40. A Vardanyan vs A Kozak |
| 1-0 | 56 | 2020 | 31st Cracovia Open A 2020/21 | D35 Queen's Gambit Declined |
| 41. Daniel Trybus vs A Kozak |
| 0-1 | 29 | 2020 | 31st Cracovia Open A 2020/21 | C41 Philidor Defense |
| 42. A Kozak vs K Lisowski |
| 1-0 | 21 | 2020 | 31st Cracovia Open A 2020/21 | D05 Queen's Pawn Game |
| 43. T Ochedzan vs A Kozak |
| ½-½ | 121 | 2020 | 31st Cracovia Open A 2020/21 | B06 Robatsch |
| 44. A Kozak vs J Kyc |
| 1-0 | 60 | 2021 | 31st Cracovia Open A 2020/21 | D32 Queen's Gambit Declined, Tarrasch |
| 45. J Kokoszczynski vs A Kozak |
| ½-½ | 24 | 2021 | 31st Cracovia Open A 2020/21 | B13 Caro-Kann, Exchange |
| 46. A Kozak vs A Szustakowski |
| ½-½ | 24 | 2021 | 31st Cracovia Open A 2020/21 | A46 Queen's Pawn Game |
| 47. M Malicka vs A Kozak |
| 0-1 | 43 | 2021 | 31st Cracovia Open A 2020/21 | B02 Alekhine's Defense |
| 48. P Kindler vs A Kozak |
| 0-1 | 58 | 2021 | European Rapid Championship | B90 Sicilian, Najdorf |
| 49. Igor Kalkowski vs A Kozak |
| 0-1 | 34 | 2021 | European Rapid Championship | B14 Caro-Kann, Panov-Botvinnik Attack |
| 50. A Kozak vs M Malicka |
| 1-0 | 27 | 2021 | European Rapid Championship | D70 Neo-Grunfeld Defense |
Kibitzing
